Natural Selection
Given that modern cetaceans (whales) share common ancestry with terrestrial mammals, what evidence from comparative embryology supports this relationship most compellingly?
If a hypothetical mutation in an ancestral species caused a slight increase in the efficiency of ATP synthase, which subsequent evolutionary phenomenon would be most likely to occur?
In bilateral animals such as humans, what embryonic development feature supports their classification into deuterostomes rather than protostomes?
The presence of ___ in eukaryotes is said to increase the diversity of proteins that can be produced from a single gene.
Which of the following best describes a key difference between Lamarck's theory of evolution and Darwin's theory of natural selection?
What process can result in homologous structures such as the forelimbs of humans and wings of bats, indicating common ancestry despite different functions?
Which approach best helps scientists resolve ambiguities inherent in constructing deep-time evolutionary relationships among major taxonomic groups?
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In a population bottleneck event, how might genetic variation be affected after recovery to previous population sizes?
What evidence provides the clearest support for the hypothesis that two species share a common ancestor?
How do vestigial structures support the theory of evolution by natural selection?